[PATCH 1/2] arm64: dts: imx8mm-beacon: Fix HS400 USDHC clock speed

Shawn Guo shawnguo2 at yeah.net
Mon Jul 7 00:22:43 PDT 2025


On Fri, Jun 20, 2025 at 04:34:45PM -0500, Adam Ford wrote:
> The reference manual for the i.MX8MM states the clock rate in
> MMC mode is 1/2 of the input clock, therefore to properly run
> at HS400 rates, the input clock must be 400MHz to operate at
> 200MHz.  Currently the clock is set to 200MHz which is half the
> rate it should be, so the throughput is half of what it should be
> for HS400 operation.
> 
> Fixes: 593816fa2f35 ("arm64: dts: imx: Add Beacon i.MX8m-Mini development kit")
> Signed-off-by: Adam Ford <aford173 at gmail.com>

Applied both, thanks!




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